func internal/strconv.AppendInt

3 uses

	internal/strconv (current package)
		ftoa.go#L510: 	dst = AppendInt(dst, int64(exp), 10)
		itoa.go#L56: func AppendInt(dst []byte, i int64, base int) []byte {

	strconv
		number.go#L221: 	return strconv.AppendInt(dst, i, base)